Date range formatter without duplicity

date_range_formatter_without_duplicity.rb

# Takes in: 29/09/20 - 29/09/20
# Outputs: 2020-09-28 18:00:00..2020-09-29 17:59:59.999999

def add_time_to_date(date)
  date_from, date_to = date.split(' - ').map { |d| Time.parse(convert_date_format(d))  }
  date_from.beginning_of_day.to_datetime..date_to.end_of_day.to_datetime
end

def convert_date_format(value)
  return DateTime.strptime(value, '%d/%m/%y').strftime("%Y-%m-%d")
end

Nice one.